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.\"     Title: hcd_buffer_create
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Host Controller APIs
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "HCD_BUFFER_CREATE" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Host Controller APIs"
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.SH "NAME"
hcd_buffer_create \- initialize buffer pools
.SH "SYNOPSIS"
.HP \w'int\ hcd_buffer_create('u
.BI "int hcd_buffer_create(struct\ usb_hcd\ *\ " "hcd" ");"
.SH "ARGUMENTS"
.PP
\fIhcd\fR
.RS 4
the bus whose buffer pools are to be initialized
.RE
.SH "CONTEXT"
.PP
!\fBin_interrupt\fR
.SH "DESCRIPTION"
.PP
Call this as part of initializing a host controller that uses the dma memory allocators\&. It initializes some pools of dma\-coherent memory that will be shared by all drivers using that controller\&.
.PP
Call
\fBhcd_buffer_destroy\fR
to clean up after using those pools\&.
.SH "RETURN"
.PP
0 if successful\&. A negative errno value otherwise\&.
.SH "COPYRIGHT"
.br